CurvingLoRa to Boost LoRa Network Throughput via Concurrent Transmission
Talkat 19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22) · 2022-04-04..04-06·
summary
Replaces LoRa’s linear chirp with non-linear chirps so misaligned concurrent transmissions scatter energy instead of producing a single overpowering peak, enabling recovery of weak packets amid strong interferers. Implements a full LoRaWAN stack on USRP N210 SDRs and compares against two research systems plus standard LoRaWAN, showing 1.6–7.6× throughput gains and successful decoding down to SIR thresholds around −5 to −10 dB for some spreading factors.
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chapters (13)
- 0:00Intro
- 0:42LoRaWAN Network Operates gl
- 1:20Background: LoRa's PHY Lay
- 3:23Existing Works
- 3:46CurvingLoRa for Resolving Colli
- 5:33Formulation for Chirp-based Mo
- 6:10CurvingLoRa's Noise Resilie
- 7:08CurvingLoRa Under Collisi
- 9:36CurvingLoRa's Coding Spo
- 10:18Implementation
- 10:57Evaluation: Symbol Level Perfo
- 12:21Evaluation: Outdoor Performa
- 13:20Conclusions & Future Work
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